Means for securing antifriction bearings on shafts



Jan. 13, 1931. R. F. RUNGE I 1,788,891

MEANS FOR SECURING ANTIFRICTION BEARINGS ON SHAFTS Filed June 24, 1929 VENTOR R055 F Rwvcz B filq M ATTORNEY Patented Jan. 13, 1931 I UNITED STATES PATENT OFFICE BDBERT I. RUNGE, OF FOREST HILLS GARDENS, LONG ISLAND, NEW YORK, ASSIGNOR TO THE SKAY EF BALL BEARING COMPANY, OF HARTFORD, CONNECTICUT, A COR- PORATION OF CONNECTICUT MEANS FOR SECURING ANTIFRICTION BEARINGS ON SHAJ'TB Application filed? June 24,

This invention relates to a device for securing the inner ring of substantially normal dimensions of an anti-friction bearing directly to a shaft. In the preferred form of my invention the inner ring of 'a ball hearing has a bore of a diameter very slightly in excess of the diameter of the shaft u on which it is to be mounted, and opening {30m the bore I provide one or more cam shaped pockets for carrying a rolling locking device. Preferably oppositely disposed cams are provided so that the device will securely lock itself to the shaft a ainst a tendency for the ring to rotate in eit or direction. I

In one embodiment of the invention three cam pockets, each having two oppositely directed cam faces, are provided located equally distant apart so that the camming action of the rollers'has a tendency to center the inner ring of the'bearing upon the shaft.

The accompanying drawings show the preferred manner of carying my invention into operation, wherein Figure 1 shows a bearing in longitudinal section equipped with a locking roller and mounted upon a short length of shaft.

Fig. 2 is a view taken from the right-hand end of Figure 1 showing one looking roller,

and

Fig. 3 is a similar view showing three looking rollers.

The antifriction hearing which has been selected for use in this illustration. is a two row. wide series self-aligning ball bearin having an inner ring 1, an outer ring 2 an two series of balls 3 holding these partstogether. A short length of shaft l, which may be assumed to be representative of a line shaft, is intended to be supported by the ball hearing when this is mounted in the pro er hanger or pillow block T he bore of the inner ring 1 1s substantially cylindrical and is preferably of a slightly larger diameter than the diameter of the shaft 4, so that the bearing may be readily placed 1929. Serial No. 378,119.

upon the shaft and threaded along to the.

position it is intended to occupy.

Heretofore it has been a great problem to securely lock the inner rings of ball bearings to line shafting in such a manner that they .ma be readily locked and unlocked, and in which the dimensions of the bore-of the inner ring correspond approximately with the dimensions' of the shaft. According to my invention one or more pockets 5 are provided in the inner ring, each of these pockets being formed with sloping side faces 6 constituting the cam faces upon which the locking roller 7 may ride when the inner race is rotated relatively to the shaft.

In Fig. 2 one such lockin device is shown, in which case when the 100 'ng has been effected the hearing at the side opposite the position of the roller will be drawn tightly against the shaft.

In theform of construction shown in Fig.- 3, three locking rollers are employed, these.

being equally distantly spaced around the shaft so that when the ring is locked to the shaft it is centered in-respect to the shaft.

Sometimes, especially after the bearing has been mounted upon the shaft fora long period of time and the rotation h always been in the same direction, difiiculty may be experienced in freeing the rollers fromtheir locked position. To enable the millwright in such a contingency to mechanically move the rollers from the low part of the cam housing to the high part, spaces as 8 maybe provided so that an instrument may be inserted from the outside and engage the roller and move it from directed cam faces, and a, roller located in each recess.

2. The combination with an antifriction bearing inner ring having a shaft receiving bore, of a cam pocket formed in the ring an opening into the bore, a locking roller located in the pocket, the side of the ring adjacent the pocket being formed with an opening through which the roller may be engaged for moving it from its locked position.

Signed at New York, N. Y., this 11th day of June, 1929.

ROBERT F. RUNGE. 

